Xu, Wennan http://orcid.org/0000-0002-0894-2962
Wang, Fei
Xue, Qingyun http://orcid.org/0000-0001-5993-5298
Article History
Received: 21 October 2021
Accepted: 20 April 2022
First Online: 27 April 2022
Declarations
:
: This study was performed in accordance with the Declaration of Helsinki principles and was approved by the Institutional Review Board of Beijing Hospital (2021BJYYEC-225-01). The requirement for patient consent was waived by the review board because of the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.